Effect of Niobium on Microstructure of Cast AISI H13 Hot Work Tool Steel

作     者：Shahram Kheirandish Ahmad Noorian 

作者机构：Department of Material Science and Metallurgical Engineering Iran University of Science and TechnologyTehran 16846-13114 Iran 

出 版 物：《Journal of Iron and Steel Research International》 (JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL)

年 卷 期：2008年第15卷第4期

页      面：61-66页

核心收录：

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 

主　　题：hot work tool steel H13 niobium NbC microstructure 

摘      要：The effect of niobium addition on the microstructure of cast AISI H13 hot work tool steel was evaluated by using EDX analyzer attached to the scanning electron microscope. The volume percent of eutectic area and eutectic cell size and also volume percent of different carbides of new steel, which is heat treated under different conditions, are also determined. The results show that the a niobium addition modifies the cast structure of Nb-alloyed hot work tool steel, and reduces the size and volume of eutectic cells, and increases the maximum hardness of the steel.